Chris King Boost MTB Disc Hub

No, the hub is designed to be fully serviceable and rebuildable using standard shop tools. This makes it straightforward to perform routine maintenance or replace bearings without needing proprietary equipment.

Unlike standard bearings that degrade over time, these surgical-grade steel races are designed to wear in rather than wear out. As you ride, the surfaces actually become smoother and faster, contributing to the hub's long-term performance.

While it is engineered for the rigors of downhill and enduro, it is perfectly suitable for cross-country riding if you prioritize durability and stiffness. Keep in mind that it is built with a heavier-duty construction, so it may be slightly heavier than dedicated lightweight XC hubs.

This hub uses the standard Boost spacing (110x15mm), which is compatible with most modern mountain bike forks. However, you should verify that your specific fork is designed for Boost spacing before purchasing, as it will not fit non-Boost or Super Boost setups.

The steel bearings are the standard, highly durable option known for longevity and smooth operation. Ceramic bearings offer a slight reduction in rolling resistance and weight, making them a popular upgrade for riders looking for marginal gains in efficiency.

No, this hub is exclusively designed for 6-bolt disc rotors. If you currently use Centerlock rotors, you would need to switch to 6-bolt rotors or use a specific adapter to make them compatible.